Speaking before the graduates of Russian military academies, Putin said the new weapons represent a quantum leap in the nation’s military capability.

“A number of our weapons systems are years, and, perhaps, decades ahead of foreign analogues,” Putin told young military officers who gathered in an ornate Kremlin hall. “Modern weapons contribute to a multifold increase in the Russian military potential.”

The tough statement comes as Putin is preparing for a summit with U.S. President Donald Trump set for July 16 in Helsinki, Finland. Russia-U.S. relations have plunged to post-Cold War lows over the Ukrainian crisis, the war in Syria, the allegations of Russian meddling in the 2016 U.S. presidential election and differences over nuclear arms control issues.

“We have achieve a real breakthrough thanks to the colossal efforts by science and design bureaus and industries, a real feat by workers, engineers and scientists,” Putin told the officers.

The Russian leader singled out the new Avangard hypersonic vehicle and the new Sarmat intercontinental ballistic missile, which are set to enter service in the next few years. Putin also mentioned the Kinzhal hypersonic missile that has already been put on duty with the units of Russia’s Southern Military District.